کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1683717 | 1010512 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Accurate automated non-resonant NRA depth profiling: Application to the low 3He concentration detection in UO2 and SiC
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Accurate automated non-resonant NRA depth profiling: Application to the low 3He concentration detection in UO2 and SiC Accurate automated non-resonant NRA depth profiling: Application to the low 3He concentration detection in UO2 and SiC](/preview/png/1683717.png)
چکیده انگلیسی
An automated method was developed to extract elemental depth profiles from non-resonant nuclear reaction analyses (NRA), which involves a two-stage procedure. The first stage enables the determination of the number of layers to be used in the final depth profile determination along with the thicknesses of each of the layers. To this end, the RESNRA program, which relies on the SIMNRA 5.0 simulation software to calculate a multilayer target, was designed at CERI. A definition of the depth resolution based on statistical considerations is proposed. In the second stage of the fitting process, a depth profile and corresponding error bars are extracted from the experimental spectrum by running a generalized reduced gradient (GRG2) algorithm using the previously calculated multilayer target. The one-to-one correspondence between the experimental spectrum and the depth profile demonstrates the objectivity of the method. The method is then applied to determining low concentration 3He depth profiles in implanted UO2 and SiC samples using the 3He(2H, 4He)1H non-resonant nuclear reaction. The results clearly demonstrate the relevance and potential of the method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 258, Issue 2, May 2007, Pages 471-478
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 258, Issue 2, May 2007, Pages 471-478
نویسندگان
G. Martin, T. Sauvage, P. Desgardin, P. Garcia, G. Carlot, M.F. Barthe,